A desert cactus experiences high daytime temperatures; which mechanism minimizes water during its CO₂ intake?

💡 Explanation

CAM plants use temporal separation; stomata open at night, incorporating CO₂ into organic acids. This carbon store releases it during the day for photosynthesis, rather than opening stomata when water loss is high. Therefore CAM cycling minimizes water loss.

• Which developmental consequence occurs when imaginal discs in Drosophila lack ecdysone receptors?
• Which risk increases when CAM plants fix CO2 at night in arid climates?
• Which mechanism enables emperor penguins to minimize heat loss during shivering in antarctic winters?
• Which process drives exoskeleton molting in larvae during incomplete metamorphosis when ecdysone pulses decrease?
• Which outcome results in endothermic mammals when ambient temperature drops below their thermoneutral zone if insulation is damaged?
• Which risk increases when prolonged drought induces root cavitation?